Ecofriendly and sustainable management of Spilosoma obliqua Walker on sesame (Sesamum indicum L.) crop by new botanicals

Abstract

Sesame (Sesamum indicum L., cv. Rama) is a widely used oldest oil seed crop throughout the world and they are highly affected by different herbivorous insect pests including Spilosoma obliqua Walker. We investigated the efficacy of two botanicals [mahogany (Swietenia mahagoni) and Indian beach or karanja (Millettia (Pongamia) pinnata) leaf extract] in 5% neem oil individually and in combined mixture for determination of LC90 by Log-probit analyses. Due to lowest LC90 value of the combined botanicals in 5% neem oil (16.49%, w/v) over the synthetic pesticide (indoxacarb @ 5%) was used for sustainable and ecofriendly management of S. obliqua on the crop in the field conditions. The seed production were significantly increased (F1,19=21.145, P